Pratt & Whitney Spindle Repair

Precision Remanufacturing of All Pratt & Whitney spindles

Pratt & Whitney Spindle repair is at the heart of our business. We have the expertise and in-house technology to get your problem resolved. Our thorough procedures for machine tool spindle failure analysis, spindle calibration, and spindle testing are just a few of the reasons why we are one of the largest spindle repair specialists in the country. Our primary goal is to reduce your down time and return to you a spindle that runs better than it did when it was new.

Here are the steps we take to get your spindle back to work:

Pratt & Whitney Spindle Rebuild Services

Step 1: Contact Us

Anytime. We have someone (yes, a person) taking customer calls 24 hours a day, 7 days a week. AND we pick up and deliver. We have three state-of-the-art facilities located in the U.S., so you can save on shipping time and cost. OR in some cases we can come to your site and do the Pratt & Whitney spindle repair at your location.

Step 2: Receiving

When your Pratt & Whitney spindle arrives at our facility we log it in and create a work order. This way we can track its progress throughout the repair process. Then comes a visual inspection as we look for any obvious signs of damage or other factors that often lead to spindle failure. Our trained technicians have been repairing spindles for years and know how to look for the most common indications of malfunction as well as those that are uncommon. We also do a preliminary vibration analysis so we can make an initial diagnosis before disassembly.

Step 3: Disassembly

The inspection process continues as we disassemble the spindle, carefully looking for signs of contamination, lack of lubrication, support equipment failure, misuse, or anything unusual.

Step 4: Cleaning

Then we start cleaning the disassembled parts and check for other signs of why the spindle failed or issues that could lead to premature failure.

Step 5: Inspection

We do a number of tests to see how the Pratt & Whitney spindle compares to the OEM specs. We check the run out, alignment, optimal tolerance levels for housing bores as well as shaft journals and parallelism. We want to get at the origin of the failure so we can get it fixed right and give you guidance on how to circumvent future spindle issues. All of this information is written up in detail to help you take steps to avoid future spindle failures that can lead to down time and loss of productivity.

Bearing contamination is a common cause for spindle failure. We inspect the bearings for preload, contamination, overloading, fretting and overheating. We’ll make a recommendation for replacing your bearings so you can extend spindle life and get better performance from it.

Step 6: Machining

If we need to manufacture new Pratt & Whitney spindle components to replace one that is broken or damaged beyond repair, then we can do that in our on-site machine shop. Having in-house machining capability means we can manufacture replacement spindle parts without having to rely on the OEM. This saves valuable time and saves you money.

Step 7: Grinding

We also do our own in-house grinding and have a climate controlled area where we can grind to precision run outs. We hold tolerances of 0.0001 or better.

Step 8: Balancing

The next step is to get the balance right. We use our state of the art balancing technology, developed by GTI Predictive Technology, to 2 stage balance all spindles that we rebuild. We will component balance and then perform final trim balance at maximum RPM to achieve the lowest unbalance and vibration levels possible.

Step 9: Reassembling

We put it all back together with new bearings, seals, o-rings, spacers, belleville washers and any other reworked components. To prevent contamination we do all of this in our controlled assembly area.

Step 10: Testing

Now that it’s put back together we test, test, test it. We test it for runout, temperature, and vibration. We do this work in increments, increasing RPM from 0 to the maximum RPM to insure the spindle is properly broken in. We will then continue to test run at maximum RPM until we feel confident that your Pratt & Whitney spindle is performing optimally—which is often better than when it was new. Final vibration test will read at .0395 over all velocity and the displacement specs will meet the recommended ISO grade scale.

Step 11: Final QC

Every Pratt & Whitney spindle that we rebuild is then put through a redundant final QC process by an independent QC audit technician to insure that all of our rebuild processes and specifications have been achieved or exceeded.

Step 12: Return Shipping

We paint and pack your newly repaired spindle in non-corrosive packing material and encase it in foam. It gets shipped to you either in a heavy duty shipping box or, if it’s a large spindle, we custom build a wooden crate with custom support brackets to ensure its safe return to your facility. When you unpack your Pratt & Whitney spindle you’ll not only be pleased with how it looks but you’ll be amazed at how well it performs.

Satisfaction Guaranteed

Our Pratt & Whitney spindle repair service will give you a spindle that will return to the floor as good as new. We offer one year warranty after every repair and re manufacturing. Call us at 888.473.9675 or you can mail us at info@gtispindle.com for an estimate on time and cost.

Our thorough procedures for machine tool spindle failure analysis, spindle repair, and complete spindle testing are just a few of the reasons why we are one of the largest spindle repair specialists in North America. We offer both in-house and on-site spindle repairs, as well as emergency assistance for when you absolutely need to get your spindle back up and running immediately.

When more than one component of your spindle is not operating properly it can be overwhelming—especially when you expected that you’d only need a repair. Don’t worry about having to buy an entirely new spindle though. We can rebuild your spindle at a fraction of the cost and time it would take to get a new one.

Predictive maintenance services ensure that you catch any problems with your spindle before they become incredibly costly. Knowing when your spindle is going to need a repair is much better than having unplanned downtime –particularly during critical times of high production – and, as a bonus, it helps reduce repair costs on a spindle that breaks without warning.

GET IN TOUCH WITH US

What our customers say

"Thank you so much for your prompt service to meet our needs. I was made aware that you offered to stock parts for us for future repairs. You have truly exemplified what great customer service means. We very much appreciate and value your company, thank you again!"

Satisfied GTI Spindle Customer

"I want to relay our outstanding pleasure with receiving our new sensor today! This outstanding customer service allowed my production line to get back up and running today, getting units out the door! I really do appreciate the effort to get this done for us, a big THANKS to you and your team!"

GTI Spindle Customer from Illinois

"Rebuilding a spindle is a good way to look bad. GTI took a problem spindle from a Mori horizontal that was hammered and had the collet seized inside, and turned it back into a beautiful functioning cast steal cutting beast. With GTI, a spindle rebuild is a good way to show customer support and world class service."

GTI Spindle Customer from Texas

"Sorry we had to bother you, but it's not our fault your level is so awesome!"

GTI Spindle Customer from Washington

"I dealt exclusively with Lisa and had two spindles rebuilt by GTI for a major aerospace manufacturer's facility in Singapore. It was a rush project and GTI responded accordingly. My feedback a month or so later was that they were the best spindle in their shop according to the operator."

GTI Spindle Customer from New York

"Thank you guys for your quick and superior support when issues arise. That's why I choose to do business with you all."

GTI Spindle Customer from Missouri

"I just wanted to let you know that you guys did a beautiful job on the spindle. I am going to let Andy know that you guys run a Class A operation over there. Thanks Again!"

GTI Spindle Customer from New York

"I'd like to thank the GTI folks for all of their efforts in support of my Grind Floor! - Regards, Chris"

GTI Spindle Customer from New Hampshire

“Thank you for doing a GREAT JOB of keeping me informed, its been great doing business with GTI.”

GTI Spindle Customer from Athens, GA

“Please extend my sincere thanks to you and your staff. This is the reason we rely on GTI Spindle.”

GTI Spindle Customer from Greenwood, IN

“Spindle is in and has been running well since Saturday evening. I would like to thank all of you for an exceptional job.”

GTI Spindle Customer from Morristown, TN

The spindle has arrived and is being installed into our machine. I will update everyone when we are running parts on this machine. I want to thank everyone at GTI for the rapid response and rebuild on this spindle for us. GTI is a world class act when it comes to helping us out.

GTI Spindle Customer in Ohio

Spindle operating temperature holds steady through the speed ranges and finish is acceptable. GTI’s performance definitely met our expectations and did a great job getting this project completed.
We look forward to working with you on future projects.

Satisfied GTI Spindle Customer

Let Us Minimize Spindle Downtime So You Can Maximize Production

Trusted by Customers and Companies Worldwide. Join them.

We have someone taking customer calls 24 hours a day. We can give you an estimate on cost and the time we need to get your spindle back to the floor within a day or two. Visit our delivery logistic page to find the spindle repair center closest to your location.